| 1 | Petunia | Dursley | Harry's aunt. Mrs. Potter's sister. |
| | Vernon | Dursley | Harry's uncle. The director of the firm called Grunnings. |
| | Dudley | Dursley | Petunia and Vernon's son. Harry's cousin. |
| | Lily | Potter | Harry's mother. |
| | Harry | Potter | Protagonist. |
| | Jim | McGuffin | The TV weatherman. |
| | Albus | Dumbledore | The headmaster of Hogwarts. |
| | | | Hogwarts - The wizarding school. |
| | Minerva | McGonagall | The deputy headmistress at Hogwarts. |
| | Voldemort | | Antagonist. Aka: You-know-who. |
| | Madam | Pomfrey | The matron at Hogwarts. |
| | James | Potter | Lily's husband. Harry's father. |
| | Rebeus | Hagrid | The keeper of keys and grounds at Hogwarts. A half-giant and half-human. |
| 2 | Marge | | Dudley's aunt. Vernon's sister. |
| | Mrs. | Figg | The Dursley's neighbor. |
| | Yvonne | | Petunia's friend. |
| | Piers | Polkiss | Dudley's best friend. |
| 3 | Dennis | Malcolm | Dudley's friend. |
| 5 | Gringotz | | A wizarding bank owned by the Goblins. |
| | | | Leaky Cauldron - A wizarding pub. |
| | Tom | | A bartender at Leaky Cauldron. |
| | Doris | Crockford | The witch who greeted Harry. |
| | Dedalus | Diggle | One of the witches Harry met. |
| | Professor | Quirrell | Harry's teacher at Hogwarts. |
| | Griphook | | One of the goblins. |
| | Madam | Malkin | Owner of a robe shop at Diagon Alley. |
| | Vindictus | Viridian | A wizard. Author at Hogwarts. |
| | Mr. | Ollivander | Owner of a wand shop at Diagon Alley. |
| | Ginny | Weasley | The youngest daughter of the Weasley family. |
| | Percy | Weasley | Ginny's brother. |
| | George | Weasley | Ginny's brother. |
| | Fred | Weasley | Ginny's brother. George's twin. |
| | Ron | Weasley | Ginny's brother. Harry's best friend. |
| | Bill | Weasley | Ron's older brother. |
| | Charlie | Weasley | Ron's older brother. |
| | Nicolas | Flamel | Dumbledore's partner. |
| | Hermione | Granger | One of the students Harry met at Hogwarts. |
| | Crabbe | Goyle | Malfoy's henchman. |
| | Draco | Malfoy | One of the students in Hogwarts. |
| | Neville | Longbottom | One of the students in Hogwarts. |
| | Lee | Jordan | A Hogwarts student who owns a big tarantula. Fred's best friend. |
| | Trevor | | Neville's toad. |
| 7 | Fat | Friar | A resident ghost at Hogwarts. |
| | Peeves | | A poltergeist at Hogwarts. |
| | Nicholas De | Mimsy-Porpington | A resident ghost at Gryffindor Tower. Aka: Headless Nick. |
| | Bloody | Baron | The Syltherin's ghost. |
| | Seamus | Finnigan | A Gryffindor member. |
| | Algie | | Neville's great-uncle. |
| | Enid | | Neville's great-aunt. |
| | Argus | Filch | The caretaker at Hogwarts. |
| | Madam | Hooch | A Quidditch Referee. Teacher. |
| | Severus | Snape | The head of the Slytherin house. |
| | Lavender | Brown | The first member of Gryffindor. |
| 8 | Mrs. | Norris | Filch's cat. |
| | Professor | Sprout | A dumply little witch. |
| | Professor | Flitwick | The charm professor. |
| 9 | Dean | Thomas | Ron's roommate. |
| | Parvati | Patil | A Slytherin member. |
| | Pansy | Parkinson | A Slytherin girl member. |
| | Oliver | Wood | The captain of the Gryffindor Team. |
| 11 | Marcus | Flint | A Slytherin Captain. |
| | Nicolas | Flamel | The maker of Sorcerer's Stone. Dumbledore's partner. |
| | Madame | Pince | The librarian. |
| 14 | Norbert | | A dragon. |
| | Fang | | The boardhound. |
| 15 | Ronan | | One of the Centaurs. |
| | Bane | | One of the Centaurs. |
| | Firenze | | One of the Centaurs. |
| 16 | Professor | Binns | The professor of the history of magic. |
| | Fluffy | | A three-headed dog. |
